12154504543 has 2 divisors, whose sum is σ = 12154504544. Its totient is φ = 12154504542.

The previous prime is 12154504517. The next prime is 12154504559. The reversal of 12154504543 is 34540545121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12154504543 - 2¹⁷ = 12154373471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12154504499 and 12154504508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12154502543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077252271 + 6077252272.

It is an arithmetic number, because the mean of its divisors is an integer number (6077252272).

Almost surely, 2^12154504543 is an apocalyptic number.

12154504543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154504543 is an equidigital number, since it uses as much as digits as its factorization.

12154504543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 12154504543 in words is "twelve billion, one hundred fifty-four million, five hundred four thousand, five hundred forty-three".